bookmark on wikipedia death source

I just read a Wikipedia article, "Death," Wikipedia: The Free Encyclopedia. I was discomforted by this article because it didn't give me the information I needed to answer my topic question.

One sentence from this article that stands out for me is: "Death is the permanent termination of the biological functions that define living organisms." I think this is good because this is a very good and only sentence that helped me with my topic.

I'm pretty sure this is accurate, because the way death was explained is pretty much the most ways people die.

I double-checked this fact http://plato.stanford.edu/entries/death/#2 which makes me feel pretty sure that it is true.

There's something in this article that I think might not be accurate. It says, "By law, a person is dead if a Statement of Death or Death Certificate is approved by a licensed medical practitioner." I don't think a Death Certificate is really necessary to show a death and I never saw anything in the law that says it is required to say someone died.

I will look to see how this article changes in the future because there are many things unanswered about death and I wish to learn the rest about death.